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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="test_Default5" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<script type="text/javascript">
function ck() {
if (document.getElementById("TextBox1").value != "") {
return true;
}
return false;
}
</script>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class test_Default5 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.Button1.Attributes.Add("onclick", "return ck();");
}
protected void Button1_Click(object sender, EventArgs e)
{
this.Label1.Text = this.TextBox1.Text;
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
</title></head>
<body>
<form name="form1" method="post" action="Default5.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMjA3NjE4MDczNg9kFgICAw9kFgICAw8PZBYCHgdvbmNsaWNrBQxyZXR1cm4gY2soKTtkZIx4iVw2p5t3VY5KoaIDHT5kZKDz" />
</div>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAwK7jovDDALs0bLrBgKM54rGBl+MP2ffMDCrv4uqx2x9mbGxOXPS" />
</div>
<div>
<script type="text/javascript">
function ck() {
if (document.getElementById("TextBox1").value != "") {
return true;
}
return false;
}
</script>
<input name="TextBox1" type="text" id="TextBox1" />
<input type="submit" name="Button1" value="Button" onclick="return ck();" id="Button1" />
<span id="Label1">Label</span>
</div>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script type="text/javascript">
function ck() {
if (document.getElementById("TextBox1").value != "") {
return true;
}
else {
return false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click"
style="height: 26px" />
</div>
</form>
</body>
</html>
using System;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.Button1.Attributes.Add("onclick", "return ck();");
}
protected void Button1_Click(object sender, EventArgs e)
{
this.Label1.Text = this.TextBox1.Text;
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"><title>
</title>
<script type="text/javascript">
function ck() {
if (document.getElementById("TextBox1").value != "") {
return true;
}
else {
return false;
}
}
</script>
</head>
<body>
<form name="form1" method="post" action="Default2.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwULLTEzMTc4NjY3NTgPZBYCAgMPZBYCAgUPD2QWAh4Hb25jbGljawUMcmV0dXJuIGNrKCk7ZGROLil9u/N145FupAbDdAMtrfy9Pw==" />
</div>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAwKrmY/WDALs0bLrBgKM54rGBtZaeLSrPbyjE5EKjRTRftoyLARt" />
</div>
<div>
<span id="Label1">Label</span>
<input name="TextBox1" type="text" id="TextBox1" />
<input type="submit" name="Button1" value="Button" onclick="return ck();" id="Button1" style="height: 26px" />
</div>
</form>
</body>
</html>
